Answer: SQL data types define that what type of data; a column can have in a table in SQL Database. Each column in a table
Category: SQL Database
List of Real SQL Database interview questions asked in technical interviews to freshers and experienced professionals. It contains questions on sql queries, basic and advanced sql interview questions.
Answer includes concept and difference between union and union all sql clause with example. Also, difference between union and join as a note has been
DDL and DML commands in SQL with examples should include definitions and difference between DDL Commands and DML commands in sql and important points. Also,
DEFAULT constraint in SQL is used to insert an automatic default value into a column of a table. If we don’t use default value constraint,
Difference between drop, delete and truncate in SQL database is frequently asked interview question. DELETE removes rows one by one depending upon WHERE condition or
Answer includes, what is scalar functions in SQL and aggregate functions with examples and difference between scalar and aggregate functions. SQL Scalar functions: SQL scalar functions